Bitcraze Forums

Hi,
As in teh subject I have HTC on a9s with android 6.

I receive information BLE connection timeout.

Do you know how to solve this problem?

It is hard to tell without more detailed information. I'm guessing you are using CF2 as CF1 doesn't have bluetooth capabilities. Can you see the Crazyflie 2.0 when scanning with the Android bluetooth manager?

Sure i have crazyflie 2.0. I see "crazyflie" in bluetooth.

Are you standing close to the switched-on Crazyflie when you are trying to connect?

My phone is close to crazyflie about 20 cm:)

This is strange, we have never seen consistent bluetooth connection error (I have seen intermittent one only, like once every 10 connections).

Is it possible for you to try with another Android device? this would allow to find out if the problem comes from the phone or the Crazyflie.

Yes I will check it and let you know.

Ok with Samsun Galaxy S4 it works, while with HTC one A9S it doesn't.

That is very strange that is doesn't work with the A9S. Unfortunately we don't have access to a A9S for further debugging. You could try to download nordic connect app to debug the connection.

Log attached

This app found crazyflie, also my bluetooth is finding this app. The only problem for connection has crazyflie app.